Stock and dies with oiling device



Aug. 7, 1928. i 1,679,820

R. FERRO STOCK AND DIES WITH'OILING DEVICE Filed Feb. 20, 1925 w mamee also allow these packing rings to form astop for the inner end of the tension spring coiled about the spindle 18. A bonnet 26 is screw-threaded onto the end of the housing 19 without the outer wall 20 of the reservoir. A hole through the cap portion of this bonnet allows the outer end of the spindle 18 to project therethrough while the inner face of the bonnet provides a stop for the outer end of the coil spring 25. From this Y construction it results that the spring yieldingly forces the needle valve to closed or seated position. The valve is readily retracted against the tension of spring 25 by means of a short rock or cam lever 27 having forked ends 28 which straddle the outwardly projecting end of the spindle 18 and are pivotally fastened thereto by pin 29. The outer extremities of the forked ends of the rock or cam lever 27 are adapted to make contact with the adjacent outer end or top surface ofbonnet 26 when said lever is rocked to cam or retract'the needle valve 18 to open position against the spring 25 which position of the parts is clearly shown in the valve in the lower right hand part of Fig.1. The distance from the axis of the pin 29 to the squared extremities of the forked lever ends 28 is greater than the distance from the axis of the said pin to thesides of the lever 27 so that when the lever 27 is swung to a right angle relative to the spindlelS the needle valve may be forced by the spring to closed position as shown by the valve in the upper left hand part of Fig. 1 but when the lever 27 is swung outwardly into alignment with the spindle 18 said spindle is retracted and the needle valve opened. The tension-of the spring draws the squared extremities of the forked ends 28 tightly enough towards the bonnet 26 to hold saidsnap lever 27 in its aligned position against accidental displacement.

It will now beseen that the operator may readily open or close the valve by simply swinging this snap lever 27 to upright or downward position. This operation is much easier and quicker than any screw adjustment and moreover has the advantage of giving a visible indication as to the position of the valve.

The distance that the needle valve is retracted from its seat in open position may be readily adjusted within a considerable limit by moving the screw-threaded bonnet 26 farther onto or off from the housing 19. For instance if it isdesired that during a given cutting operation more oil be provided the bonnet 26 will be unthreaded slightly and this will operate to retract the needle -valve proportionately more from its seat whenthe operating lever 27 is moved to aligned position.

g It will be particularly noted that this adjustment will not be disturbed by the subsequent opening or closing of the needle valve. For a general line of work the valve will be set to a given position when opened by its operating lever and this adjustment will not be disturbed except as different conditions of work, oil or temperature require.

The reservoirs are provided with a filling aperture 30 located in the outer wall 20, these filling apertures being closed by plug 31. Each reservoir will also be provided with an air vent whereby air may be admitted to the reservoir from time to time as the oil is fed therefrom. Preferably this air vent will consist of an air vent pipe 32 having its inner end screw-thremled into a proper hole provided in the inner wall of the reservoir with the outer end of the pipe extending almost to the outer wall of the reservoir.

Preferably the hole 33 into which this pipe is threaded will be in alignment; with the filling opening 30. This enables the hole 30 to be used to get access to the hole 33 during the manufacture of the tool and also results in the air vent pipe being directly in alignment with the hole 30 so that the pipe 82 may be readily cleaned out when required by sticking a wire directly through said pipe by using the hole 30. Preferably a partition 31- extends from the front to the rear .side of the recess so as to form a 1 )(H'l\'0l' in the portion of the recess next to the needle valve. This keeps a supply of oil near the needle valve through a larger portion of the rotation of the tool.

I have found that a convenient and etl'ective way to form a substantially oil-proof joint between the front surface of the walls of the reservoir and the closing gap 17 is to form a substantially square recess 35 in the front face of the reservoir and to place in said recess a circular lead wire packing 37. This lead wire packing can be readily bent to the curves of the recess 35 around the reservoir when the closing plate 17 is placed in position and fastened to the casing of the tool by a plurality of round headed screws 36. The plate will be forced down upon the lead tightly enough to effect a substantially oil-proof joint.

hat I claim as new and desire to secure by Letters Patent is: 1. In a stock and dies the combination of a stock casing with outwardly extending means for mounting said dies, dies mounted therein, a reservoir for lubricating oil lo cated within said casing between adjacent die-holding means, a duct leading from said reservoir inwardly toward the die, a longitudinally slideable needle valve, mounted in said casing and having its inner end adapted to block the opening through said duct and having its outer end extending without the casing, a spring operatively connected to said valve tending to keep it yieldiingiy seatet against said duct opening' and a swinging; cain iever connected to said valve and manually operable from without the casing and adapted to be set at one position to hold the valve open anaii'ist said spring: tension, and adapted in its other position to allow the valve to close under said r-ipring tension and means inter-- posed between said swinging; lever and the easing and operative tron'i without the deviee :tor varying the open position of the valve sueh adjustment not being disturbed h v the regular elosing and opening of the valve by said swinging lever.

in a stoelr and dies the combination oi? a steel; easing; with outwardly extending nioans tor mounting said dies, dies niounted therein a reservoir :ior inbrieating;- oil loouted within said casing between adjacent die-holding means, a duct leading. from said reservoir inwardly toward the die, a longitudinali g siideable needle valve, mounted in said casing and having its inner end an: pted to block The opening' throughsaid duet and having its outer end extending); without the casino, a spring); operatively conneeted to said vaive tending to keep it yieldingtv seated against said duet opening, and a swinning;- eani lever connected to said valve and manually operable from without the casing; and adapted to be set at one position to hoid the valve open against said sp 'np; tension, and adapted in its other position to allow the valve to riose under said spring tension and screw-threaded nieans interposed between said swinging lever and the casing and operable from without the device for varying the open position of the valve, such adjustment not being disturbed by the regular closing and opening of the valve by said swinging lever.

In a stock and dies the combination of a stock easing with outwardly extending means for mounting said d ies, dies niounted therein, a reservoir for lubricating oil to ea'ted within'said casing between adjacent die-holdinnn'ieans a duet leading :ironi said reservoir inwardly toward. the die, a longitudinally slideable needle valve, mounted in said casing and having its inner end adapted to hioclr the opening through said duct and having its outer end extending without the easing, a spring operativeiy connected to said valve tending to keep it yieldingrly seated against said duet openings, and a swii'iging eani lever eonnected to said valve and manually operable t'roni witluuit the easing and adapted to be set at one position. to hold the valve open against said spring tension, and adapted in. its other position to ttilUW the valve to close under said spring tension and an air vent tube extending from the portion of the reservoir remote itroni the die through the wall oi? the reservoir nearest the center of the die stock and a titling plug on the outer side oi? the reservoir.

in. witness whereo it have atiined my signature, this 22 day t if 0: January, 1925.

ROCCO FERRO. 

